3D Printing for Electrochemical Water Splitting

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3D Printing: Fundamentals to Emerging Applications


Additive manufacturing (or 3D printing) has been increasingly employed for energy conversion and storage applications. Although it is still in the early stage of research and development, the utilization of 3D printing for electrochemical water splitting applications has gained significant interest. This eco-friendly manufacturing approach offers promising prospects in rapid prototyping and fabricating complex geometries that would assist in the innovations of water-splitting electrolyzers. In this chapter, we discuss the development of 3D printing technology for electrochemical water splitting applications. We discuss the principle and fundamentals of electrochemical water splitting, and the utilization of 3D printing techniques to fabricate both conductive and non-conductive components related to water splitting. Particularly, we emphasize the recent development of 3D-printed electrodes and the associated electrochemical cell designs that would impact the water splitting performance. Strategies such as catalyst assemblies during electrode fabrications, post-processing of printed electrodes, and advances in water splitting device fabrication are discussed. Finally, we discuss the benefits and limitations of 3D printing for electrochemical water splitting and offer our insights into future directions of this field.

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